Player picks a random ball from one of 3 boxes. It's known that for one box the probability of picking out white ball is 1/4, for another box it's 0 and for the last box it's 1/2. What's the probablity of player's picking a white ball if her choice of box is random. Enter the value:

There are 9 people in a group. They are picking straws to see who has to clean the house. If 1 more woman enters the group, the probability of a man picking the long straw will be 1/2.How many women were in the group originally?

Whitney wants to practice shooting for basketball.  Her mom will give her $20 if she makes 3 free throws in a row, $10 for 2 free throws, and $5 for 1 free throw.  Whitney will pay her mom $10 for no free throws.  She normally scores 68% of the time. What is the probability that she makes all 3 free throws?  What is the probability that she only makes 2 free throws?  What is the probability that she only makes 1 free throw?  What is the expected value for how much money she can expect to make?

Jelany has a jar of beads with all different colors. There is a total of 80 beads and 35 of them are red. Sofia removes one bead at a time without replacing them. She realizes that the probability of choosing a red then a yellow marble is 420/6320. How many yellow beads are in the jar?

Wes and his friend Anderson are taking a picture with 6 other people standing in a row. Find the probability that:  a. Wes is standing at one end and Anderson at the other b. Wes and Anderson will be standing consecutively (in either order)

A bag of marbles contains 4 red, 3 blue, 2 green and 1 yellow marble.  Half of the red and green marbles are glass, and all of the other marbles are polished stone.  What is the probability of selecting: Add the colors together to determine how many marbles are in the bag.  This will become the right side of the answer.  Determine how many marbles exactly fit the specified criteria to find the left side.  Remember to reduce if necessary. A yellow stone marble:  Ratio: ____ : ____ A blue or green stone marble: Ratio:  _____ : _____ Two red marbles in a row without replacement: Ratio:  _____ : _____ Three glass marbles in a row with replacement:  Ratio: _____ : _____

There are 5 red eggs and 9 green eggs in a tank. Grogu reaches in and randomly eats 3 eggs. What is the probability that he eats 2 red eggs?

A bag of marbles contains 4 red, 3 blue, 2 green and 1 yellow marble.  Half of the red and green marbles are glass, and all of the other marbles are polished stone.  What is the probability of selecting: Add the colors together to determine how many marbles are in the bag.  This will become the right side of the answer.  Determine how many marbles exactly fit the specified criteria to find the left side.  Remember to reduce if necessary. A yellow stone marble:  ____ : ____ A blue or green stone marble:  _____ : _____ Two red marbles in a row without replacement:  _____ : _____ Three glass marbles in a row with replacement:  _____ : _____

A bag contains an equal number of pieces of candy for 6 candy colors. What is the probability of drawing either a yellow candy or a blue candy when drawing a single piece of candy from the bag?

In a suitcase there are 5 orange, y green, (y+2) grey and 6 yellow pens. Probability of choosing one green pen from the given suitcase is 1/3. What is the sum of the number of green, grey and yellow pens?